Pre- al: fractional rates

Front

What is a unit price and how is it calculated?

Back

A unit price is the cost per single unit of measure, calculated by dividing the total price by the number of units.

Front

How do you compare unit prices to determine the better deal?

Back

To compare unit prices, calculate the unit price for each option and choose the one with the lower unit price.

Front

What is the formula to find the time taken to read a whole book if a fraction of it is read in a certain time?

Back

If Jada reads 3/5 of a book in 1/4 hour, the time to read the whole book can be found using the formula: Total time = (1 / (3/5)) * (1/4) = 5/12 hours.

Front

How do you calculate the unit rate of earnings per hour?

Back

The unit rate is calculated by dividing the total earnings by the total hours worked.

Front

What is dimensional analysis and how is it used in converting units?

Back

Dimensional analysis is a method to convert one unit of measurement to another using conversion factors.

Front

How do you convert miles per hour to feet per second?

Back

To convert miles per hour to feet per second, multiply the speed in miles per hour by 5280 (feet in a mile) and then divide by 3600 (seconds in an hour).

Front

What is the significance of scaling up or down in problem-solving?

Back

Scaling up or down helps to find unknown quantities by maintaining the same ratio or proportion.

Front

What is the relationship between fractions and rates?

Back

Fractions can represent rates, where the numerator is the part and the denominator is the whole, allowing for comparisons and calculations.

Front

How can you express a mixed number as an improper fraction?

Back

To convert a mixed number to an improper fraction, multiply the whole number by the denominator, add the numerator, and place the result over the original denominator.

Front

What is the importance of understanding rates in real-life applications?

Back

Understanding rates helps in making informed decisions in various contexts, such as shopping, budgeting, and time management.